Use Of Removable Partial Dentures Research Articles

Residual dentition, prosthesis type and oral health-related quality of life in Uruguayan adults.

To investigate the association between different types of dental prostheses (and residual dentition) and oral health-related quality of life (OHRQoL). A population-based study with a representative sample of adults and older adults in Uruguay (2010-2011). The dependent variable was the score on the oral impact on daily performance (OIDP), and the main predictor was the pattern of tooth loss and prosthesis use. Covariates included sex, age, socioeconomic status, education, missing teeth, pain and decayed teeth. Negative binomial regression was used. The sample comprised 762 participants. Those participants not wearing a prosthesis and with extensive tooth loss had a mean OIDP of 3.1 (95% CI=1.6-6.2), while those wearing removable partial dentures (RPD) and having <12 missing teeth had a mean OIDP of 3.6 (95% CI=1.3-10.0). Participants with a free-end saddle had the highest mean OIDP, at 4.9 (95% CI=2.0-12.1). For participants with ≤12 missing teeth, any additional missing tooth was associated with an 11% higher OIDP score. Participants who wore RDPs reported fewer impacts on OHRQoL if they had extensive tooth loss or anterior tooth loss than those with a free-end saddle, or who had lost fewer teeth. The use of RPDs is associated with better OHRQoL. These findings may be valuable in clinical practice and prosthetic planning.

Removable partial dentures and mortality among partially edentulous adults

ObjectivesThe aim of this study was to evaluate whether the use of removable partial dentures (RPDs) has an effect on long-term survival outcomes amongst partially edentulous adults. MethodsData were extracted from the Third National Health and Nutrition Examination Survey and linked to public-use mortality files for the period up to 2019. Partially edentulous adults with fewer than 20 teeth were included. RPD use and dentition status were determined by clinical examination. The cohort was propensity score weighted to create a sample which was balanced across 27 covariates (sociodemographics, health behaviors and insurance, laboratory markers, and general health status). Survival analysis was undertaken to compute absolute (mortality rate and median survival time) and relative (event time ratio [ETR]) measures of exposure effect. ResultsThe analyzed cohort included 1246 participants, which equated to 22,557 person-years of follow-up. The difference in all-cause mortality rate between RPD wearers and non-wearers was found to be –6.5 (95% CI: –11.6 to –1.4), with the median survival time in RPD wearers being 3.1 years longer (20.3 years versus 17.2 years). A 26% increase in survival time was observed in RPD wearers (ETR: 1.26, 95% CI: 1.17 to 1.37) and it was found that, for every 7.5 individuals treated with RPDs, one death would be prevented after 10 years of treatment. ConclusionsThe use of RPDs may have long-term benefits in reducing mortality amongst adults with a non-functional dentition, but further research is needed to validate these findings and assess the factors mediating the relationship. Clinical significanceThe use of RPDs may have long-term benefits in reducing mortality amongst adults with a non-functional dentition.

Impact of Removable Partial Denture on Quality-of-life of Sudanese Adults in Khartoum State.

Tooth loss can affect a patient's quality-of-life (QoL), impacting on aspects, such as nutritional intake, psychological status, self-image, and daily engaging in social interaction. The purpose of this study was to assess the oral health-related QoL (OHRQoL) among adult Sudanese patients wearing removable partial dentures (RPDs) by utilizing oral health impact profile-14 (OHIP-14) to assess patient satisfaction with their dentures. The study population included 370 adult patients wearing RPDs. Of these, 99 were males and 271 females with the age range of 35 to above 60 years. Self-reported questionnaires were distributed randomly to be completed by the participants from each health sector after having read a consent letter. Two measures interpreting the OHIP-14 scales (sum and prevalence) were utilized for data collection. The relationship of patients' demographic characteristics, general and oral health status, and denture characteristics with their OHRQoL was investigated. The data were processed and analyzed by means of Statistical Package for the Social Sciences (SPSS). The means of OHIP-14 sum and OHIP-14 prevalence of partial denture wearers were 10.9 + 7.8 and 18.9% respectively. The most problematic aspects of OHIP-14 were functional limitation and psychological disability. On the contrary, the participants had little problem as a handicap and social disability aspects. The self-reported oral health, regular follow-up, denture satisfaction, duration of denture wearing use of the denture while eating, and frequency of denture cleaning positively contribute to oral health-related quality. Loss of teeth and use of RPD significantly affect patients' oral health status and QoL. Patients who are satisfied with their dentures have a better QoL than their unsatisfied counterparts.

The Use of an Implant-supported Fixed Partial Denture as Abutment Teeth for Removable Partial Denture in Edentulous Patient: A Cases Report

It is not possible to treat all patients with the fixed implant restoration only. Patients who have lost their posterior teeth and wear removable partial dentures for a long time should be considered differently from other edentulous patients in treatment planning. Posterior residual alveolar ridge is getting thinner and more advanced surgery is required for the proper fixture position. Oral rehabilitation with dentures may be a more appropriate solution in such a case. An implant-supported FPD (fixed partial denture) in the anterior segment can be used as surveyed bridge for traditional clasp RPD (removable partial denture) in the posterior areas. The use of RPDs in conjunction with implants can supply normal emergence profiles, phonetics, lip support, and anterior guidance and vertical dimension are established with the implant supported FPD. The purpose of present case report is to present an effective and viable treatment option in selected cases and emphasize its usefulness and proper indications.

Oral hygiene in patients using removable dentures

Abstract Introduction. Properly designed and used denture is conducive to proper rehabilitation of edentulism. Aim. The aim of the study was to assess the knowledge and hygiene habits of patients using removable partial dentures (RPDs) including selected sociodemographic characteristics. Material and methods. The survey comprised 321 individuals wearing RPDs, the residents of the Lublin Province. They were asked about the age, gender, place of residence, education, duration of denture usage, repairs made to RPDs, preparations used for cleansing and disinfection of RPDs, storage at night, causes of visiting the dentist, which was associated with the use of the RPD and the frequency of visits. The results were statistically analyzed. Results. The average duration of removable partial dentures use was 7.8±5.7 years. The vast majority of respondents cleaned RPDs with a toothpaste – 90.9%, almost 2/3 of the surveyed population – did not disinfect their RPDs, 56.4% people not remove them for the night. Only 3.7% people visited the dentist on regular basis associated with the use of RPDs. Conclusions. Among people wearing RPDs, too long duration of current RPD usage is confirmed. Moreover, the dentist does not check them regularly because patients do not visit dentists for check-up. RPDs are cleaned using improper preparations and usually are not disinfected. They are inadequately kept at nighttime, if ever removed from the mouth during sleep. Incorrect handling related to the use of removable partial dentures applies to persons regardless of their level of education and place of residence.

Assessment of Periodontal and Hygiene Conditions of Removable Partial Dentures in Individuals With Clefts.

To assess hygiene conditions in removable partial dentures (RPDs) and to compare the periodontal status between abutment and nonabutment teeth in clefts patients. Cross-sectional. Tertiary referral hospital. Forty-five patients of both genders, aged 20 to 75 years, who were upper RPD wearers for at least 2 years, with cleft lip, alveolus, and/or palate who attended follow-up appointments between 2010 and 2012. The clinical periodontal parameters assessed on abutment teeth (experimental group) and nonabutment teeth (control group) were probing depth, clinical attachment level (CAL), plaque index, and gingival index (GI). The RPDs were evaluated under the following parameters: hygiene conditions and type of clasp on abutment. Both groups were analyzed using Mann-Whitney, Kruskal-Wallis, and Dunn's statistical test. Statistical significance was set at P < .05. One hundred sixty-six abutment teeth and 168 nonabutment teeth were evaluated in 45 patients. A statistically significant difference was found between the groups for the CAL parameter (P = .03). With regard to the prostheses' hygiene conditions through the Tarbet index parameter, of the 186 quadrants evaluated, 143 scored 2 and 3. Ackers' clasps were the most frequent clasps (n = 111). A statistically significant difference was found for the GI parameter (P = .03). It was possible to conclude, in this cross-sectional study, that in general terms, the use of RPDs did not interfere in the periodontal conditions of abutment teeth; however, most prostheses presented poor hygiene and high quantity of dental plaque.

Fabrication and physical properties of glass-fiber-reinforced thermoplastics for non-metal-clasp dentures.

Recently, non-metal-clasp dentures (NMCDs) made from thermoplastic resins such as polyamide, polyester, polycarbonate, and polypropylene have been used as removable partial dentures (RPDs). However, the use of such RPDs can seriously affect various tissues because of their low rigidity. In this study, we fabricated high-rigidity glass-fiber-reinforced thermoplastics (GFRTPs) for use in RPDs, and examined their physical properties such as apparent density, dynamic hardness, and flexural properties. GFRTPs made from E-glass fibers and polypropylene were fabricated using an injection-molding. The effects of the fiber content on the GFRTP properties were examined using glass-fiber contents of 0, 5, 10, 20, 30, 40, and 50 mass%. Commercially available denture base materials and NMCD materials were used as controls. The experimental densities of GFRTPs with various fiber contents agreed with the theoretical densities. Dynamic micro-indentation tests confirmed that the fiber content does not affect the GFRTP surface properties such as dynamic hardness and elastic modulus, because most of the reinforcing glass fibers are embedded in the polypropylene. The flexural strength increased from 55.8 to 217.6 MPa with increasing glass-fiber content from 0 to 50 mass%. The flexural modulus increased from 1.75 to 7.42 GPa with increasing glass-fiber content from 0 to 50 mass%, that is, the flexural strength and modulus of GFRTP with a fiber content of 50 mass% were 3.9 and 4.2 times, respectively, those of unreinforced polypropylene. These results suggest that fiber reinforcement has beneficial effects, and GFRTPs can be used in NMCDs because their physical properties are better than those of controls. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 2254-2260, 2017.

Transition from Failing Dentition to Full‐Arch Fixed Implant‐Supported Prosthesis with a Staged Approach Using Removable Partial Dentures: A Case Series

The present retrospective case series is aimed at evaluating a staged approach using a removable partial denture (RPD) as an interim prosthesis in treatment to correct a failing dentition until such time as a full-arch fixed implant-supported prosthesis may be inserted. Eight patients, who had undergone maxillary full-arch rehabilitation with dental implants due to poor prognosis of their dentitions, were analyzed. All treatment included initial periodontal therapy and a strategic order of extraction of hopeless teeth. An RPD supported by selected teeth rehabilitated the compromised arch during implant osseointegration. These remaining teeth were extracted prior to definitive prosthesis delivery. Advantages and drawbacks of this technique were also recorded for the cases presented. Among the advantages provided by the staged approach are simplicity of fabrication, low cost, and ease of insertion. Additionally, RPD tooth support prevented contact between the interim prosthesis and healing abutments, promoting implant osseointegration. The main drawbacks were interference with speech and limited esthetic results. Implant survival rate was 100% within a follow-up of at least 1 year. The use of RPDs as interim prostheses allowed for the accomplishment of the analyzed rehabilitation treatments. It is a simple treatment alternative for patients with a low smile line.

Time course of bone metabolism at the residual ridge beneath dentures observed using 18F-fluoride positron emission computerized-tomography/computed tomography (PET/CT)

ObjectiveExcessive pressure due to wearing mal-adapting dentures is well known to cause residual bone resorption beneath the denture. X-rays have been commonly utilized to evaluate the changes in the bone beneath the denture. However, X-ray images merely detect bone density and relatively large changes in the bone shape and structure, whereas nuclear medicine imaging can detect functional changes, which occur prior to structural changes. This article aimed to describe the time course of the bone metabolism at the residual ridge beneath the denture following denture use by 18F-fluoride positron emission computerized-tomography (PET)/computed tomography (CT) scanning.MethodsThree subjects, who had a free-end edentulous mandible, were treated with a denture replacing the edentulous region of the dental arch. The metabolic changes in the residual bone beneath the denture were assessed by 18F-fluoride PET/CT imaging. 18F-fluoride PET/CT scanning was performed at baseline, and 4–6 and 13 weeks after denture use. A volume of interest (VOI) was placed on their mandibles at the edentulous region beneath the denture on the PET/CT image. CT value and mean standardized uptake value (SUV) of the VOI were calculated. The difference in the time variation between the CT value and SUV was analyzed.ResultsThe adaptation of the denture base to the residual ridge was successful, and there was no trouble such as pain at the residual ridge beneath the denture. The SUVs of each VOI significantly increased at 4–6 weeks after denture use and then decreased at 13 weeks in all three subjects (P < 0.05; two-way ANOVA, Dunnett test). On the other hand, the CT images showed no obvious changes in the bone shape or structure beneath the dentures, and the CT values of each VOI remained static after denture use in all three subjects.ConclusionsThis study indicates that in the present first-time removable partial denture (RPD) users, wearing of a well-adapted RPD initially increased bone metabolism beneath the denture and then decreased it at around 13 weeks after RPD use without any bone structural changes detectable by clinical X-rays. These metabolic changes are a mechanobiological reaction to the pressure induced by RPD use.

Bone metabolism of residual ridge beneath the denture base of an RPD observed using NaF-PET/CT

A 66-year-old woman, who had a bilateral free-end edentulous mandible and no experience with dentures, was examined for the chief complaint of masticatory dysfunction on left side of dental arch. A unilateral distal extension removable partial denture (RPD) replacing lower-left molars was selected. Tomographic images were obtained using Fluorine-18 NaF positron emission computerized tomography (NaF-PET)/computed tomography (CT) before the RPD use and at 1, 6, and 13 weeks after the RPD use to observe the metabolic changes in residual bone caused by the RPD use. PET standardized uptake values (SUVs) and CT values were calculated for lower-left edentulous site (test side) and lower-right edentulous site (control side). As a result, SUVs on the control side remained static after the RPD use, whereas those on the test side increased at 1 and 6 weeks after the RPD use and then decreased. However, CT images showed no obvious changes in the bone shape and structure beneath RPD, and CT values both on the control and test sides did not change either. This report shows that NaF-PET could detect bone metabolic changes soon after the RPD use, which cannot be detected by clinical X-rays. The SUV changes may be a mechanobiological reaction to the pressure due to the RPD use, and wearing of the RPD may increase the bone turnover beneath denture. This report demonstrates that wearing of an RPD increases bone turnover beneath denture immediately after the RPD use without clinically detectable changes in bone structure or volume.

Dual Component Removable Partial Denture shows improved patient practicality: An evidence based pilot study

Dual Component Removable Partial Denture (DuCo RPD) is composed of a double base; lower and upper. The lower base, where the artificial teeth are attached, acts as a support and is in contact with the alveolar ridges and oral mucosa. Clasps are designed on the upper base, which acts towards the retention and stabilization of the denture. This study aims to compare the practicality and physiological changes between the use of DuCo RPD and Removable Partial Denture (RPD). Thirty-three cases of Kennedy class III patients were chosen to apply either DuCo RPD or RPD. Annual check-up was performed for three years to survey body weight, physical signs, facial symmetry, dental caries, alveolar bone density, periodontal status, teeth mobility, denture retention, stability, degree of comfort, efficiency of biting, and total serum protein in blood before and after wearing DuCo RPD. All these factors were compared with patients before and after wearing traditional RPD. Body weight, physical signs, facial symmetry, dental caries, alveolar bone density and periodontal status were not statistically different between the RPD and the DuCo RPD users. Bone resorption, teeth mobility and teeth loss of the RPD group were significantly higher (p stability (p patients with DuCo RPD application showed better physiological outcomes than patients with RPD application.

Provision of Removable Partial Dentures

Objective To identify factors that influence Removable Partial Denture (RPD) provision, and patient use of RPDs in the UK. Design Exploratory qualitative interview study. Subjects and methods Subjects There were two sample groups. A purposive sample of 16 male and female dentists was categorised in terms of level of RPD provision, experience, and practice characteristics. A purposive sample of 17 male and female partially dentate patients was categorised in terms of RPD use and demographic characteristics. Data collection Semi-structured in-depth interviews. Results For dentists, RPD provision was indicated by patient demand and physical function of the remaining teeth, but was mediated by NHS fee structures and professional satisfaction. For patients, RPD use was influenced by the trade-off between improved appearance and the unpalatable presence of an RPD in their mouth. The location of the gap(s) was important, but other issues were relevant such as ability to 'manage' without the RPD. Conclusion When defining 'need' for an RPD, dentists focused on physical function of the teeth whereas patients focused on social meanings of the mouth. These differing priorities may improve understandings of patient non-compliance in RPD use. Further research on the relationship between denture use and social identity could be beneficial.

Determining 'need' for a Removable Partial Denture: a qualitative study of factors that influence dentist provision and patient use

To identify factors that influence Removable Partial Denture (RPD) provision, and patient use of RPDs in the UK. Exploratory qualitative interview study. There were two sample groups. A purposive sample of 16 male and female dentists was categorised in terms of level of RPD provision, experience, and practice characteristics. A purposive sample of 17 male and female partially dentate patients was categorised in terms of RPD use and demographic characteristics. Semi-structured in-depth interviews. For dentists, RPD provision was indicated by patient demand and physical function of the remaining teeth, but was mediated by NHS fee structures and professional satisfaction. For patients, RPD use was influenced by the trade-off between improved appearance and the unpalatable presence of an RPD in their mouth. The location of the gap(s) was important, but other issues were relevant such as ability to "manage" without the RPD. When defining "need" for an RPD, dentists focused on physical function of the teeth whereas patients focused on social meanings of the mouth. These differing priorities may improve understandings of patient non-compliance in RPD use. Further research on the relationship between denture use and social identity could be beneficial.